src/gallium/drivers/radeon/radeon_winsys.h

   1 /*
   2  * Copyright 2008 Corbin Simpson <MostAwesomeDude@gmail.com>
   3  * Copyright 2010 Marek Olšák <maraeo@gmail.com>
   4  *
   5  * Permission is hereby granted, free of charge, to any person obtaining a
   6  * copy of this software and associated documentation files (the "Software"),
   7  * to deal in the Software without restriction, including without limitation
   8  * on the rights to use, copy, modify, merge, publish, distribute, sub
   9  * license, and/or sell copies of the Software, and to permit persons to whom
  10  * the Software is furnished to do so, subject to the following conditions:
  11  *
  12  * The above copyright notice and this permission notice (including the next
  13  * paragraph) shall be included in all copies or substantial portions of the
  14  * Software.
  15  *
  16  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  17  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  18  * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL
  19  * THE AUTHOR(S) AND/OR THEIR SUPPLIERS BE LIABLE FOR ANY CLAIM,
  20  * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
  21  * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
  22  * USE OR OTHER DEALINGS IN THE SOFTWARE. */
  23
  24 #ifndef RADEON_WINSYS_H
  25 #define RADEON_WINSYS_H
  26
  27 /* The public winsys interface header for the radeon driver. */
  28
  29 #include "pipebuffer/pb_buffer.h"
  30
  31 #define RADEON_FLUSH_ASYNC              (1 << 0)
  32 #define RADEON_FLUSH_END_OF_FRAME       (1 << 1)
  33
  34 /* Tiling flags. */
  35 enum radeon_bo_layout {
  36     RADEON_LAYOUT_LINEAR = 0,
  37     RADEON_LAYOUT_TILED,
  38     RADEON_LAYOUT_SQUARETILED,
  39
  40     RADEON_LAYOUT_UNKNOWN
  41 };
  42
  43 enum radeon_bo_domain { /* bitfield */
  44     RADEON_DOMAIN_GTT  = 2,
  45     RADEON_DOMAIN_VRAM = 4,
  46     RADEON_DOMAIN_VRAM_GTT = RADEON_DOMAIN_VRAM | RADEON_DOMAIN_GTT
  47 };
  48
  49 enum radeon_bo_flag { /* bitfield */
  50     RADEON_FLAG_GTT_WC =        (1 << 0),
  51     RADEON_FLAG_CPU_ACCESS =    (1 << 1),
  52     RADEON_FLAG_NO_CPU_ACCESS = (1 << 2),
  53 };
  54
  55 enum radeon_bo_usage { /* bitfield */
  56     RADEON_USAGE_READ = 2,
  57     RADEON_USAGE_WRITE = 4,
  58     RADEON_USAGE_READWRITE = RADEON_USAGE_READ | RADEON_USAGE_WRITE
  59 };
  60
  61 enum radeon_family {
  62     CHIP_UNKNOWN = 0,
  63     CHIP_R300, /* R3xx-based cores. */
  64     CHIP_R350,
  65     CHIP_RV350,
  66     CHIP_RV370,
  67     CHIP_RV380,
  68     CHIP_RS400,
  69     CHIP_RC410,
  70     CHIP_RS480,
  71     CHIP_R420,     /* R4xx-based cores. */
  72     CHIP_R423,
  73     CHIP_R430,
  74     CHIP_R480,
  75     CHIP_R481,
  76     CHIP_RV410,
  77     CHIP_RS600,
  78     CHIP_RS690,
  79     CHIP_RS740,
  80     CHIP_RV515,    /* R5xx-based cores. */
  81     CHIP_R520,
  82     CHIP_RV530,
  83     CHIP_R580,
  84     CHIP_RV560,
  85     CHIP_RV570,
  86     CHIP_R600,
  87     CHIP_RV610,
  88     CHIP_RV630,
  89     CHIP_RV670,
  90     CHIP_RV620,
  91     CHIP_RV635,
  92     CHIP_RS780,
  93     CHIP_RS880,
  94     CHIP_RV770,
  95     CHIP_RV730,
  96     CHIP_RV710,
  97     CHIP_RV740,
  98     CHIP_CEDAR,
  99     CHIP_REDWOOD,
 100     CHIP_JUNIPER,
 101     CHIP_CYPRESS,
 102     CHIP_HEMLOCK,
 103     CHIP_PALM,
 104     CHIP_SUMO,
 105     CHIP_SUMO2,
 106     CHIP_BARTS,
 107     CHIP_TURKS,
 108     CHIP_CAICOS,
 109     CHIP_CAYMAN,
 110     CHIP_ARUBA,
 111     CHIP_TAHITI,
 112     CHIP_PITCAIRN,
 113     CHIP_VERDE,
 114     CHIP_OLAND,
 115     CHIP_HAINAN,
 116     CHIP_BONAIRE,
 117     CHIP_KAVERI,
 118     CHIP_KABINI,
 119     CHIP_HAWAII,
 120     CHIP_MULLINS,
 121     CHIP_TONGA,
 122     CHIP_ICELAND,
 123     CHIP_CARRIZO,
 124     CHIP_FIJI,
 125     CHIP_STONEY,
 126     CHIP_POLARIS10,
 127     CHIP_POLARIS11,
 128     CHIP_LAST,
 129 };
 130
 131 enum chip_class {
 132     CLASS_UNKNOWN = 0,
 133     R300,
 134     R400,
 135     R500,
 136     R600,
 137     R700,
 138     EVERGREEN,
 139     CAYMAN,
 140     SI,
 141     CIK,
 142     VI,
 143 };
 144
 145 enum ring_type {
 146     RING_GFX = 0,
 147     RING_COMPUTE,
 148     RING_DMA,
 149     RING_UVD,
 150     RING_VCE,
 151     RING_LAST,
 152 };
 153
 154 enum radeon_value_id {
 155     RADEON_REQUESTED_VRAM_MEMORY,
 156     RADEON_REQUESTED_GTT_MEMORY,
 157     RADEON_MAPPED_VRAM,
 158     RADEON_MAPPED_GTT,
 159     RADEON_BUFFER_WAIT_TIME_NS,
 160     RADEON_TIMESTAMP,
 161     RADEON_NUM_CS_FLUSHES,
 162     RADEON_NUM_BYTES_MOVED,
 163     RADEON_VRAM_USAGE,
 164     RADEON_GTT_USAGE,
 165     RADEON_GPU_TEMPERATURE, /* DRM 2.42.0 */
 166     RADEON_CURRENT_SCLK,
 167     RADEON_CURRENT_MCLK,
 168     RADEON_GPU_RESET_COUNTER, /* DRM 2.43.0 */
 169 };
 170
 171 /* Each group of four has the same priority. */
 172 enum radeon_bo_priority {
 173     RADEON_PRIO_FENCE = 0,
 174     RADEON_PRIO_TRACE,
 175     RADEON_PRIO_SO_FILLED_SIZE,
 176     RADEON_PRIO_QUERY,
 177
 178     RADEON_PRIO_IB1 = 4, /* main IB submitted to the kernel */
 179     RADEON_PRIO_IB2, /* IB executed with INDIRECT_BUFFER */
 180     RADEON_PRIO_DRAW_INDIRECT,
 181     RADEON_PRIO_INDEX_BUFFER,
 182
 183     RADEON_PRIO_CP_DMA = 8,
 184
 185     RADEON_PRIO_VCE = 12,
 186     RADEON_PRIO_UVD,
 187     RADEON_PRIO_SDMA_BUFFER,
 188     RADEON_PRIO_SDMA_TEXTURE,
 189
 190     RADEON_PRIO_USER_SHADER = 16,
 191     RADEON_PRIO_INTERNAL_SHADER, /* fetch shader, etc. */
 192
 193     /* gap: 20 */
 194
 195     RADEON_PRIO_CONST_BUFFER = 24,
 196     RADEON_PRIO_DESCRIPTORS,
 197     RADEON_PRIO_BORDER_COLORS,
 198
 199     RADEON_PRIO_SAMPLER_BUFFER = 28,
 200     RADEON_PRIO_VERTEX_BUFFER,
 201
 202     RADEON_PRIO_SHADER_RW_BUFFER = 32,
 203     RADEON_PRIO_SCRATCH_BUFFER,
 204     RADEON_PRIO_COMPUTE_GLOBAL,
 205
 206     RADEON_PRIO_SAMPLER_TEXTURE = 36,
 207     RADEON_PRIO_SHADER_RW_IMAGE,
 208
 209     RADEON_PRIO_SAMPLER_TEXTURE_MSAA = 40,
 210
 211     RADEON_PRIO_COLOR_BUFFER = 44,
 212
 213     RADEON_PRIO_DEPTH_BUFFER = 48,
 214
 215     RADEON_PRIO_COLOR_BUFFER_MSAA = 52,
 216
 217     RADEON_PRIO_DEPTH_BUFFER_MSAA = 56,
 218
 219     RADEON_PRIO_CMASK = 60,
 220     RADEON_PRIO_DCC,
 221     RADEON_PRIO_HTILE,
 222     RADEON_PRIO_SHADER_RINGS,
 223     /* 63 is the maximum value */
 224 };
 225
 226 struct winsys_handle;
 227 struct radeon_winsys_ctx;
 228
 229 struct radeon_winsys_cs_chunk {
 230     unsigned cdw;  /* Number of used dwords. */
 231     unsigned max_dw; /* Maximum number of dwords. */
 232     uint32_t *buf; /* The base pointer of the chunk. */
 233 };
 234
 235 struct radeon_winsys_cs {
 236     struct radeon_winsys_cs_chunk current;
 237     struct radeon_winsys_cs_chunk *prev;
 238     unsigned                      num_prev; /* Number of previous chunks. */
 239     unsigned                      max_prev; /* Space in array pointed to by prev. */
 240     unsigned                      prev_dw; /* Total number of dwords in previous chunks. */
 241
 242     /* Memory usage of the buffer list. These are always 0 for CE and preamble
 243      * IBs. */
 244     uint64_t                      used_vram;
 245     uint64_t                      used_gart;
 246 };
 247
 248 struct radeon_info {
 249     /* PCI info: domain:bus:dev:func */
 250     uint32_t                    pci_domain;
 251     uint32_t                    pci_bus;
 252     uint32_t                    pci_dev;
 253     uint32_t                    pci_func;
 254
 255     /* Device info. */
 256     uint32_t                    pci_id;
 257     enum radeon_family          family;
 258     enum chip_class             chip_class;
 259     uint32_t                    gart_page_size;
 260     uint64_t                    gart_size;
 261     uint64_t                    vram_size;
 262     uint64_t                    max_alloc_size;
 263     bool                        has_dedicated_vram;
 264     bool                        has_virtual_memory;
 265     bool                        gfx_ib_pad_with_type2;
 266     bool                        has_sdma;
 267     bool                        has_uvd;
 268     uint32_t                    uvd_fw_version;
 269     uint32_t                    vce_fw_version;
 270     uint32_t                    me_fw_version;
 271     uint32_t                    pfp_fw_version;
 272     uint32_t                    ce_fw_version;
 273     uint32_t                    vce_harvest_config;
 274     uint32_t                    clock_crystal_freq;
 275
 276     /* Kernel info. */
 277     uint32_t                    drm_major; /* version */
 278     uint32_t                    drm_minor;
 279     uint32_t                    drm_patchlevel;
 280     bool                        has_userptr;
 281
 282     /* Shader cores. */
 283     uint32_t                    r600_max_quad_pipes; /* wave size / 16 */
 284     uint32_t                    max_shader_clock;
 285     uint32_t                    num_good_compute_units;
 286     uint32_t                    max_se; /* shader engines */
 287     uint32_t                    max_sh_per_se; /* shader arrays per shader engine */
 288
 289     /* Render backends (color + depth blocks). */
 290     uint32_t                    r300_num_gb_pipes;
 291     uint32_t                    r300_num_z_pipes;
 292     uint32_t                    r600_gb_backend_map; /* R600 harvest config */
 293     bool                        r600_gb_backend_map_valid;
 294     uint32_t                    r600_num_banks;
 295     uint32_t                    num_render_backends;
 296     uint32_t                    num_tile_pipes; /* pipe count from PIPE_CONFIG */
 297     uint32_t                    pipe_interleave_bytes;
 298     uint32_t                    enabled_rb_mask; /* GCN harvest config */
 299
 300     /* Tile modes. */
 301     uint32_t                    si_tile_mode_array[32];
 302     uint32_t                    cik_macrotile_mode_array[16];
 303 };
 304
 305 /* Tiling info for display code, DRI sharing, and other data. */
 306 struct radeon_bo_metadata {
 307     /* Tiling flags describing the texture layout for display code
 308      * and DRI sharing.
 309      */
 310     enum radeon_bo_layout   microtile;
 311     enum radeon_bo_layout   macrotile;
 312     unsigned                pipe_config;
 313     unsigned                bankw;
 314     unsigned                bankh;
 315     unsigned                tile_split;
 316     unsigned                mtilea;
 317     unsigned                num_banks;
 318     unsigned                stride;
 319     bool                    scanout;
 320
 321     /* Additional metadata associated with the buffer, in bytes.
 322      * The maximum size is 64 * 4. This is opaque for the winsys & kernel.
 323      * Supported by amdgpu only.
 324      */
 325     uint32_t                size_metadata;
 326     uint32_t                metadata[64];
 327 };
 328
 329 enum radeon_feature_id {
 330     RADEON_FID_R300_HYPERZ_ACCESS,     /* ZMask + HiZ */
 331     RADEON_FID_R300_CMASK_ACCESS,
 332 };
 333
 334 #define RADEON_SURF_MAX_LEVEL                   32
 335
 336 #define RADEON_SURF_TYPE_MASK                   0xFF
 337 #define RADEON_SURF_TYPE_SHIFT                  0
 338 #define     RADEON_SURF_TYPE_1D                     0
 339 #define     RADEON_SURF_TYPE_2D                     1
 340 #define     RADEON_SURF_TYPE_3D                     2
 341 #define     RADEON_SURF_TYPE_CUBEMAP                3
 342 #define     RADEON_SURF_TYPE_1D_ARRAY               4
 343 #define     RADEON_SURF_TYPE_2D_ARRAY               5
 344 #define RADEON_SURF_MODE_MASK                   0xFF
 345 #define RADEON_SURF_MODE_SHIFT                  8
 346 #define     RADEON_SURF_MODE_LINEAR_ALIGNED         1
 347 #define     RADEON_SURF_MODE_1D                     2
 348 #define     RADEON_SURF_MODE_2D                     3
 349 #define RADEON_SURF_SCANOUT                     (1 << 16)
 350 #define RADEON_SURF_ZBUFFER                     (1 << 17)
 351 #define RADEON_SURF_SBUFFER                     (1 << 18)
 352 #define RADEON_SURF_Z_OR_SBUFFER                (RADEON_SURF_ZBUFFER | RADEON_SURF_SBUFFER)
 353 #define RADEON_SURF_HAS_SBUFFER_MIPTREE         (1 << 19)
 354 #define RADEON_SURF_HAS_TILE_MODE_INDEX         (1 << 20)
 355 #define RADEON_SURF_FMASK                       (1 << 21)
 356 #define RADEON_SURF_DISABLE_DCC                 (1 << 22)
 357
 358 #define RADEON_SURF_GET(v, field)   (((v) >> RADEON_SURF_ ## field ## _SHIFT) & RADEON_SURF_ ## field ## _MASK)
 359 #define RADEON_SURF_SET(v, field)   (((v) & RADEON_SURF_ ## field ## _MASK) << RADEON_SURF_ ## field ## _SHIFT)
 360 #define RADEON_SURF_CLR(v, field)   ((v) & ~(RADEON_SURF_ ## field ## _MASK << RADEON_SURF_ ## field ## _SHIFT))
 361
 362 struct radeon_surf_level {
 363     uint64_t                    offset;
 364     uint64_t                    slice_size;
 365     uint32_t                    npix_x;
 366     uint32_t                    npix_y;
 367     uint32_t                    npix_z;
 368     uint32_t                    nblk_x;
 369     uint32_t                    nblk_y;
 370     uint32_t                    nblk_z;
 371     uint32_t                    pitch_bytes;
 372     uint32_t                    mode;
 373     uint64_t                    dcc_offset;
 374     uint64_t                    dcc_fast_clear_size;
 375     bool                        dcc_enabled;
 376 };
 377
 378 struct radeon_surf {
 379     /* These are inputs to the calculator. */
 380     uint32_t                    npix_x;
 381     uint32_t                    npix_y;
 382     uint32_t                    npix_z;
 383     uint32_t                    blk_w;
 384     uint32_t                    blk_h;
 385     uint32_t                    blk_d;
 386     uint32_t                    array_size;
 387     uint32_t                    last_level;
 388     uint32_t                    bpe;
 389     uint32_t                    nsamples;
 390     uint32_t                    flags;
 391
 392     /* These are return values. Some of them can be set by the caller, but
 393      * they will be treated as hints (e.g. bankw, bankh) and might be
 394      * changed by the calculator.
 395      */
 396     uint64_t                    bo_size;
 397     uint64_t                    bo_alignment;
 398     /* This applies to EG and later. */
 399     uint32_t                    bankw;
 400     uint32_t                    bankh;
 401     uint32_t                    mtilea;
 402     uint32_t                    tile_split;
 403     uint32_t                    stencil_tile_split;
 404     struct radeon_surf_level    level[RADEON_SURF_MAX_LEVEL];
 405     struct radeon_surf_level    stencil_level[RADEON_SURF_MAX_LEVEL];
 406     uint32_t                    tiling_index[RADEON_SURF_MAX_LEVEL];
 407     uint32_t                    stencil_tiling_index[RADEON_SURF_MAX_LEVEL];
 408     uint32_t                    pipe_config;
 409     uint32_t                    num_banks;
 410     uint32_t                    macro_tile_index;
 411     uint32_t                    micro_tile_mode; /* displayable, thin, depth, rotated */
 412
 413     /* Whether the depth miptree or stencil miptree as used by the DB are
 414      * adjusted from their TC compatible form to ensure depth/stencil
 415      * compatibility. If either is true, the corresponding plane cannot be
 416      * sampled from.
 417      */
 418     bool                        depth_adjusted;
 419     bool                        stencil_adjusted;
 420
 421     uint64_t                    dcc_size;
 422     uint64_t                    dcc_alignment;
 423 };
 424
 425 struct radeon_bo_list_item {
 426     uint64_t bo_size;
 427     uint64_t vm_address;
 428     uint64_t priority_usage; /* mask of (1 << RADEON_PRIO_*) */
 429 };
 430
 431 struct radeon_winsys {
 432     /**
 433      * The screen object this winsys was created for
 434      */
 435     struct pipe_screen *screen;
 436
 437     /**
 438      * Decrement the winsys reference count.
 439      *
 440      * \param ws  The winsys this function is called for.
 441      * \return    True if the winsys and screen should be destroyed.
 442      */
 443     bool (*unref)(struct radeon_winsys *ws);
 444
 445     /**
 446      * Destroy this winsys.
 447      *
 448      * \param ws        The winsys this function is called from.
 449      */
 450     void (*destroy)(struct radeon_winsys *ws);
 451
 452     /**
 453      * Query an info structure from winsys.
 454      *
 455      * \param ws        The winsys this function is called from.
 456      * \param info      Return structure
 457      */
 458     void (*query_info)(struct radeon_winsys *ws,
 459                        struct radeon_info *info);
 460
 461     /**************************************************************************
 462      * Buffer management. Buffer attributes are mostly fixed over its lifetime.
 463      *
 464      * Remember that gallium gets to choose the interface it needs, and the
 465      * window systems must then implement that interface (rather than the
 466      * other way around...).
 467      *************************************************************************/
 468
 469     /**
 470      * Create a buffer object.
 471      *
 472      * \param ws        The winsys this function is called from.
 473      * \param size      The size to allocate.
 474      * \param alignment An alignment of the buffer in memory.
 475      * \param use_reusable_pool Whether the cache buffer manager should be used.
 476      * \param domain    A bitmask of the RADEON_DOMAIN_* flags.
 477      * \return          The created buffer object.
 478      */
 479     struct pb_buffer *(*buffer_create)(struct radeon_winsys *ws,
 480                                        uint64_t size,
 481                                        unsigned alignment,
 482                                        enum radeon_bo_domain domain,
 483                                        enum radeon_bo_flag flags);
 484
 485     /**
 486      * Map the entire data store of a buffer object into the client's address
 487      * space.
 488      *
 489      * \param buf       A winsys buffer object to map.
 490      * \param cs        A command stream to flush if the buffer is referenced by it.
 491      * \param usage     A bitmask of the PIPE_TRANSFER_* flags.
 492      * \return          The pointer at the beginning of the buffer.
 493      */
 494     void *(*buffer_map)(struct pb_buffer *buf,
 495                         struct radeon_winsys_cs *cs,
 496                         enum pipe_transfer_usage usage);
 497
 498     /**
 499      * Unmap a buffer object from the client's address space.
 500      *
 501      * \param buf       A winsys buffer object to unmap.
 502      */
 503     void (*buffer_unmap)(struct pb_buffer *buf);
 504
 505     /**
 506      * Wait for the buffer and return true if the buffer is not used
 507      * by the device.
 508      *
 509      * The timeout of 0 will only return the status.
 510      * The timeout of PIPE_TIMEOUT_INFINITE will always wait until the buffer
 511      * is idle.
 512      */
 513     bool (*buffer_wait)(struct pb_buffer *buf, uint64_t timeout,
 514                         enum radeon_bo_usage usage);
 515
 516     /**
 517      * Return buffer metadata.
 518      * (tiling info for display code, DRI sharing, and other data)
 519      *
 520      * \param buf       A winsys buffer object to get the flags from.
 521      * \param md        Metadata
 522      */
 523     void (*buffer_get_metadata)(struct pb_buffer *buf,
 524                                 struct radeon_bo_metadata *md);
 525
 526     /**
 527      * Set buffer metadata.
 528      * (tiling info for display code, DRI sharing, and other data)
 529      *
 530      * \param buf       A winsys buffer object to set the flags for.
 531      * \param md        Metadata
 532      */
 533     void (*buffer_set_metadata)(struct pb_buffer *buf,
 534                                 struct radeon_bo_metadata *md);
 535
 536     /**
 537      * Get a winsys buffer from a winsys handle. The internal structure
 538      * of the handle is platform-specific and only a winsys should access it.
 539      *
 540      * \param ws        The winsys this function is called from.
 541      * \param whandle   A winsys handle pointer as was received from a state
 542      *                  tracker.
 543      * \param stride    The returned buffer stride in bytes.
 544      */
 545     struct pb_buffer *(*buffer_from_handle)(struct radeon_winsys *ws,
 546                                             struct winsys_handle *whandle,
 547                                             unsigned *stride, unsigned *offset);
 548
 549     /**
 550      * Get a winsys buffer from a user pointer. The resulting buffer can't
 551      * be exported. Both pointer and size must be page aligned.
 552      *
 553      * \param ws        The winsys this function is called from.
 554      * \param pointer   User pointer to turn into a buffer object.
 555      * \param Size      Size in bytes for the new buffer.
 556      */
 557     struct pb_buffer *(*buffer_from_ptr)(struct radeon_winsys *ws,
 558                                          void *pointer, uint64_t size);
 559
 560     /**
 561      * Whether the buffer was created from a user pointer.
 562      *
 563      * \param buf       A winsys buffer object
 564      * \return          whether \p buf was created via buffer_from_ptr
 565      */
 566     bool (*buffer_is_user_ptr)(struct pb_buffer *buf);
 567
 568     /**
 569      * Get a winsys handle from a winsys buffer. The internal structure
 570      * of the handle is platform-specific and only a winsys should access it.
 571      *
 572      * \param buf       A winsys buffer object to get the handle from.
 573      * \param whandle   A winsys handle pointer.
 574      * \param stride    A stride of the buffer in bytes, for texturing.
 575      * \return          true on success.
 576      */
 577     bool (*buffer_get_handle)(struct pb_buffer *buf,
 578                               unsigned stride, unsigned offset,
 579                               unsigned slice_size,
 580                               struct winsys_handle *whandle);
 581
 582     /**
 583      * Return the virtual address of a buffer.
 584      *
 585      * \param buf       A winsys buffer object
 586      * \return          virtual address
 587      */
 588     uint64_t (*buffer_get_virtual_address)(struct pb_buffer *buf);
 589
 590     /**
 591      * Query the initial placement of the buffer from the kernel driver.
 592      */
 593     enum radeon_bo_domain (*buffer_get_initial_domain)(struct pb_buffer *buf);
 594
 595     /**************************************************************************
 596      * Command submission.
 597      *
 598      * Each pipe context should create its own command stream and submit
 599      * commands independently of other contexts.
 600      *************************************************************************/
 601
 602     /**
 603      * Create a command submission context.
 604      * Various command streams can be submitted to the same context.
 605      */
 606     struct radeon_winsys_ctx *(*ctx_create)(struct radeon_winsys *ws);
 607
 608     /**
 609      * Destroy a context.
 610      */
 611     void (*ctx_destroy)(struct radeon_winsys_ctx *ctx);
 612
 613     /**
 614      * Query a GPU reset status.
 615      */
 616     enum pipe_reset_status (*ctx_query_reset_status)(struct radeon_winsys_ctx *ctx);
 617
 618     /**
 619      * Create a command stream.
 620      *
 621      * \param ctx       The submission context
 622      * \param ring_type The ring type (GFX, DMA, UVD)
 623      * \param flush     Flush callback function associated with the command stream.
 624      * \param user      User pointer that will be passed to the flush callback.
 625      */
 626     struct radeon_winsys_cs *(*cs_create)(struct radeon_winsys_ctx *ctx,
 627                                           enum ring_type ring_type,
 628                                           void (*flush)(void *ctx, unsigned flags,
 629                                                         struct pipe_fence_handle **fence),
 630                                           void *flush_ctx);
 631
 632     /**
 633      * Add a constant engine IB to a graphics CS. This makes the graphics CS
 634      * from "cs_create" a group of two IBs that share a buffer list and are
 635      * flushed together.
 636      *
 637      * The returned constant CS is only a stream for writing packets to the new
 638      * IB. Calling other winsys functions with it is not allowed, not even
 639      * "cs_destroy".
 640      *
 641      * In order to add buffers and check memory usage, use the graphics CS.
 642      * In order to flush it, use the graphics CS, which will flush both IBs.
 643      * Destroying the graphics CS will destroy both of them.
 644      *
 645      * \param cs  The graphics CS from "cs_create" that will hold the buffer
 646      *            list and will be used for flushing.
 647      */
 648     struct radeon_winsys_cs *(*cs_add_const_ib)(struct radeon_winsys_cs *cs);
 649
 650      /**
 651      * Add a constant engine preamble IB to a graphics CS. This add an extra IB
 652      * in similar manner to cs_add_const_ib. This should always be called after
 653      * cs_add_const_ib.
 654      *
 655      * The returned IB is a constant engine IB that only gets flushed if the
 656      * context changed.
 657      *
 658      * \param cs  The graphics CS from "cs_create" that will hold the buffer
 659      *            list and will be used for flushing.
 660      */
 661     struct radeon_winsys_cs *(*cs_add_const_preamble_ib)(struct radeon_winsys_cs *cs);
 662     /**
 663      * Destroy a command stream.
 664      *
 665      * \param cs        A command stream to destroy.
 666      */
 667     void (*cs_destroy)(struct radeon_winsys_cs *cs);
 668
 669     /**
 670      * Add a buffer. Each buffer used by a CS must be added using this function.
 671      *
 672      * \param cs      Command stream
 673      * \param buf     Buffer
 674      * \param usage   Whether the buffer is used for read and/or write.
 675      * \param domain  Bitmask of the RADEON_DOMAIN_* flags.
 676      * \param priority  A higher number means a greater chance of being
 677      *                  placed in the requested domain. 15 is the maximum.
 678      * \return Buffer index.
 679      */
 680     unsigned (*cs_add_buffer)(struct radeon_winsys_cs *cs,
 681                              struct pb_buffer *buf,
 682                              enum radeon_bo_usage usage,
 683                              enum radeon_bo_domain domain,
 684                              enum radeon_bo_priority priority);
 685
 686     /**
 687      * Return the index of an already-added buffer.
 688      *
 689      * \param cs        Command stream
 690      * \param buf       Buffer
 691      * \return          The buffer index, or -1 if the buffer has not been added.
 692      */
 693     int (*cs_lookup_buffer)(struct radeon_winsys_cs *cs,
 694                             struct pb_buffer *buf);
 695
 696     /**
 697      * Return true if there is enough memory in VRAM and GTT for the buffers
 698      * added so far. If the validation fails, all buffers which have
 699      * been added since the last call of cs_validate will be removed and
 700      * the CS will be flushed (provided there are still any buffers).
 701      *
 702      * \param cs        A command stream to validate.
 703      */
 704     bool (*cs_validate)(struct radeon_winsys_cs *cs);
 705
 706     /**
 707      * Check whether the given number of dwords is available in the IB.
 708      * Optionally chain a new chunk of the IB if necessary and supported.
 709      *
 710      * \param cs        A command stream.
 711      * \param dw        Number of CS dwords requested by the caller.
 712      */
 713     bool (*cs_check_space)(struct radeon_winsys_cs *cs, unsigned dw);
 714
 715     /**
 716      * Return the buffer list.
 717      *
 718      * \param cs    Command stream
 719      * \param list  Returned buffer list. Set to NULL to query the count only.
 720      * \return      The buffer count.
 721      */
 722     unsigned (*cs_get_buffer_list)(struct radeon_winsys_cs *cs,
 723                                    struct radeon_bo_list_item *list);
 724
 725     /**
 726      * Flush a command stream.
 727      *
 728      * \param cs          A command stream to flush.
 729      * \param flags,      RADEON_FLUSH_ASYNC or 0.
 730      * \param fence       Pointer to a fence. If non-NULL, a fence is inserted
 731      *                    after the CS and is returned through this parameter.
 732      * \return Negative POSIX error code or 0 for success.
 733      *         Asynchronous submissions never return an error.
 734      */
 735     int (*cs_flush)(struct radeon_winsys_cs *cs,
 736                     unsigned flags,
 737                     struct pipe_fence_handle **fence);
 738
 739     /**
 740      * Create a fence before the CS is flushed.
 741      * The user must flush manually to complete the initializaton of the fence.
 742      * The fence must not be used before the flush.
 743      */
 744     struct pipe_fence_handle *(*cs_get_next_fence)(struct radeon_winsys_cs *cs);
 745
 746     /**
 747      * Return true if a buffer is referenced by a command stream.
 748      *
 749      * \param cs        A command stream.
 750      * \param buf       A winsys buffer.
 751      */
 752     bool (*cs_is_buffer_referenced)(struct radeon_winsys_cs *cs,
 753                                     struct pb_buffer *buf,
 754                                     enum radeon_bo_usage usage);
 755
 756     /**
 757      * Request access to a feature for a command stream.
 758      *
 759      * \param cs        A command stream.
 760      * \param fid       Feature ID, one of RADEON_FID_*
 761      * \param enable    Whether to enable or disable the feature.
 762      */
 763     bool (*cs_request_feature)(struct radeon_winsys_cs *cs,
 764                                enum radeon_feature_id fid,
 765                                bool enable);
 766      /**
 767       * Make sure all asynchronous flush of the cs have completed
 768       *
 769       * \param cs        A command stream.
 770       */
 771     void (*cs_sync_flush)(struct radeon_winsys_cs *cs);
 772
 773     /**
 774      * Wait for the fence and return true if the fence has been signalled.
 775      * The timeout of 0 will only return the status.
 776      * The timeout of PIPE_TIMEOUT_INFINITE will always wait until the fence
 777      * is signalled.
 778      */
 779     bool (*fence_wait)(struct radeon_winsys *ws,
 780                        struct pipe_fence_handle *fence,
 781                        uint64_t timeout);
 782
 783     /**
 784      * Reference counting for fences.
 785      */
 786     void (*fence_reference)(struct pipe_fence_handle **dst,
 787                             struct pipe_fence_handle *src);
 788
 789     /**
 790      * Initialize surface
 791      *
 792      * \param ws        The winsys this function is called from.
 793      * \param surf      Surface structure ptr
 794      */
 795     int (*surface_init)(struct radeon_winsys *ws,
 796                         struct radeon_surf *surf);
 797
 798     /**
 799      * Find best values for a surface
 800      *
 801      * \param ws        The winsys this function is called from.
 802      * \param surf      Surface structure ptr
 803      */
 804     int (*surface_best)(struct radeon_winsys *ws,
 805                         struct radeon_surf *surf);
 806
 807     uint64_t (*query_value)(struct radeon_winsys *ws,
 808                             enum radeon_value_id value);
 809
 810     bool (*read_registers)(struct radeon_winsys *ws, unsigned reg_offset,
 811                            unsigned num_registers, uint32_t *out);
 812 };
 813
 814 static inline bool radeon_emitted(struct radeon_winsys_cs *cs, unsigned num_dw)
 815 {
 816     return cs && (cs->prev_dw + cs->current.cdw > num_dw);
 817 }
 818
 819 static inline void radeon_emit(struct radeon_winsys_cs *cs, uint32_t value)
 820 {
 821     cs->current.buf[cs->current.cdw++] = value;
 822 }
 823
 824 static inline void radeon_emit_array(struct radeon_winsys_cs *cs,
 825                                      const uint32_t *values, unsigned count)
 826 {
 827     memcpy(cs->current.buf + cs->current.cdw, values, count * 4);
 828     cs->current.cdw += count;
 829 }
 830
 831 #endif